Wilbur pleaded guilty in November to a single count of distributing child pornography.

Before his sentencing hearing, Wilbur wrote a letter to the judge overseeing his case. He wrote that his addiction to adult pornography eventually lead him to illegal child pornography.

"During this time, I rationalized that I was not hurting anyone, but fully realize now that the act of sharing these files was hurting people and every day I deal with the guilt and shame of unintentionally hurting people that were innocent," Wilbur wrote.

In addition to the prison sentence, U.S. District Judge James D. Whittemore also ordered Wilbur to serve 20 years of supervised release.

<p>A 46-year-old Davenport man was sentenced Tuesday to 10 years in federal prison after authorities discovered he amassed a child pornography collection of more than 300,000 images and 8,000 videos.</p><p>Investigators said Preston D. Wilbur's collection of child pornography was found on computers and other electronic storage devices seized from his home, according to court records.</p><p>Wilbur told investigators that he got his child pornography from an online file sharing program, records state.</p><p>Wilbur pleaded guilty in November to a single count of distributing child pornography.</p><p>Before his sentencing hearing, Wilbur wrote a letter to the judge overseeing his case. He wrote that his addiction to adult pornography eventually lead him to illegal child pornography.</p><p>"During this time, I rationalized that I was not hurting anyone, but fully realize now that the act of sharing these files was hurting people and every day I deal with the guilt and shame of unintentionally hurting people that were innocent," Wilbur wrote. </p><p>In addition to the prison sentence, U.S. District Judge James D. Whittemore also ordered Wilbur to serve 20 years of supervised release.</p>